Agitating-machine.



W. H. BARTON. AGLTATING MACHINE. APPLICATLON FILED AUG.23. I9I5.

Patnted Nov. 14, 1916.

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WMWWWM a m n w n m mww k WILLET'I H. BARTON, OF SAN DIEGO, CALIFORNIA.

surname-Manama.

To allwhom it may concern: Be it known that I, WILLETT H. BAii'roN,

a citizen of the United States, residing at San Diego, in the county ofSan Diego and State of California,-have invented certain new andusefulIInprovements in Agitating Machines; and I do declare thefollowing to be a full, clear, and exact description of the invention,.such as will enable'others skilled in the art to which it appertains tomake and use the same;

This invention relates to new and usefulimprovements in agitatingmachines, and more particularly to a machine for the agitation of pulp,comprising ground gold, silver or copper ore in a cyanid solution. oracid solution, and the object of this machine is to produce a continuoussuspension of finely divided material in thesolution or ring the chargeof "pulp.

Another object of this invention is to provide during the agitatingoperation of this machine, means for automatically transferpulp from onetank to another.

A further object of the invention is to provide a device which is simpleand durable in construction, inexpensive to manufac ture, and one whichwill be very eflicient in operation.

With these and numerous other objects in view, my invention consists ofthe novel features of construction, combination and arrangement of partswhich will be herein referred to and more particularly pointed out inthe specification and claims.

i In the accompanying drawings, Figure 1 is a central verticallongitudinal section of the agitating machine; Fig. 2 is a top plan viewof the same; Fig. 3- is a plan View of 'the additional agitator beforethe same is applied; Fig. 4 is a side elevation of the same.

In describing my invention I shall refer to the accompanying. drawingsin which similar reference characters designate corresponding partsthroughout the several views and in which the numeral 1 indicates a tankhaving an inverted conical bottom 2.

This tank 1 is adapted to receive a pulp or" solution which is requiredto be stirred or agitated, and may be constructed of any desiredmaterial for instance, wood, metal, or

Specification of Letters Patent.

Application filed August 28, 1915. Serial No."48,997.

Patented Nov. 14, 1916.

other durable material such as is applicable 7 for use in devices ofthis character.

The tank 1 has positioned therein a vertically disposed pipe 3 having anopen lower end4 disposed contiguous to the apex of the inverted conicalshaped bottom 2 of the said tank. The upper end of the vertical pipe 3has secured thereto, a casing 5 which has projecting therefrom, aplurality of radial tubular arms 6. These tubular arms 6 have theirextremities bent laterally as shown at 7 in the same direction, so thatthe pulp when projected therethrough will not strike directly againstthe inner wallof the tank 1, adjacent which the extremities of saidarms'6 are disposed. The upper end of the pipe 3 projects a shortdistance into the casing 5 as shown at 8, so that the same will be on alevel with the outlets of the same A which are connected with the arms6. These arms -6 are shown-in this instance as comprlsing a pair ofradially projecting tubes,

but any desired number may be applied to the said casing. The pipe 3 andarms 6 are supported in the tank 1 by means of the steel shaft S whichprojects upwardly from said tank and is held in a vertical position bymeans of brackets or bearings B attached to a frame or support not shownin the drawings. The upper bearing B supports the mechanism by means ofacollar G attached to the shaft S, by means of a. set screw L. Thisshaft S is secured to the top of the casing 5 at its lower end as shownat 9 by any desired means, and v the shaft S has positioned thereonbetween the bearings B, a pulley P which is adapted to connect with someoutside power to rotate the shaft and hence rotate the pipe.3 and thearms 6 for a purpose to be hereinafter more fully described. The arms 6are made to taper from the joint, at which they connect to the casing 5,to their ends, sothat the width of the smaller end is one-half the widthof the larger end to provide a uniform velocity throughout their lengthThis mechanism is sopositioned in-the tank 1 that the radiallyprojecting arms 6 .will .bepositioned a predetermined distance above thepulp in the said tank, and spaced below the arms 6 and above the pulp insaid tank at a'point on the inner surface of the tank, is, a dischargehopper or trough 10. This discharge hopper 10 has one of its sidesconforming to the curvature of the inner surface of the tank and securedthereto by as tening bolts 11 as clearly shown in Fig. 2 of thedrawings. This discharge trough or hopper 10 is provided adjacent itslower end with an outlet pipe 12 which projects through the said hopperand side of the tank and is adapted to carry pulp from the said hopperto any desired point. It will be obvious that when pulp is carriedthrough the pipe 3 and arms 6 upon revolution of the same by anoperation to behereinafter more fully described, av certain amount ofpulp which is discharged through the extremities 7 of the said arms willdrop into the hopper or trough 10, and hence be carried from the tank 1to another receptacle if desired.

Projecting through the lower end of the tank 1 and the apex of theinverted conical shaped bottom of the same is a pipe 13, which has anupturned elbow 15 at its end, and said elbow has a contracted nozzle oroutlet at its upper end disposed in alincment with the lower open end 4of the pipe 3, and spaced therefrom. This pipe 13 is provided with avalve 16 at the outside of the tank 1, and the said pipe is adapted tocarry therethrough water under pressure for a purpose to be more fullyhereinafter described.

A pair of semi-circular metal strips 17 and 18 are adapted to engage theouter surface of the lower end 4 of the pipe 3, and these semi-circularstrips are disposed on opposite sides of the said lower end of the pipe,and have projecting therefrom laterally extending end portions 19 and20,

which are given one-quarter turns at their extremities and contact witheach other throughout the length of the same. These laterally extendingend portions are secured firmly into engagement with one another bymeans of locking bolts 21 as clearly shown in Figs. 3 and 4 of thedrawings. The extremitiesof the ends 1.) and 20 of the strips havealining apertures 22 therethrough. to which are adapted to be securedone end of chains 23 and 24. When the strips are secured to the lowerend of the pipe 3 as above described, and the same is rotated, they willform additional agitating means which are adapted to keep the pulp inthe apex of the inverted conical shaped bottom 2 in a constantcirculation, and prevent'any sediment from forming therein, which wouldtend to block the open end of the pipe 3.

ln operation with the arts of this device asH-mbled as shown in l ig. 1of the drawings, and it is desired to agitate the pulp or --olutioncontained in the tank 1, the starting pipe 13 which carries the waterunder pressure, is operated by opening the valve 16 therein, whereby thestream of water under a sufiicient head of pressure will be projected ina jet through the outer end of the said pipe and upwardly through thevertical pipe 3 which is disposed in t e tank 1. This pipe 3 is revolvedby means of the shaft S which carries the that is connected to someoutsi a motor power.- The jet of water which is forced upwardly throughthe pi 3 is under sufficient pressure to carry ti: same to the top ofsaid pipe and'will thereby force all the air from t 1e said pipe andalso from the radially projecting arms 6 at the top of the same. Thiswill create a suction in the said pipe and arms and will tend to drawthepulp upwardly through the pi 3, and on account of the revolving of t esaid pipe and arms, upon the pulp reaching the top of the pipe andpaming throu h the outer l1P- per end of the same inth' t e casing 5,the same will be projected outwardly through the arms 6 by centrifugalforce. The ul will be projected through the extremities of the arms 6and will hence flow back into the tank 1 thereby causing a completecirculation within the same which will agitate the pulp. After thiscirculation is started, the valve 16 that controls the water inlet pipe13 is closed and the flow of water therefrom is stopped andthiscirculation of pul within the pipe 1 is kept up by the oentri ugalforce operating through the arms 6, which tends to throw the pulpoutwardly therefrom and will create a constant suction to'uplift thepulp through the pipe 3. This said operation through the pipe 3 andarms' 6 will be kept up as long as the arms are revolved.

It will be noted that at the lower end 4v of the pipe 3 is fixed anadditional agitator which comprises a pair of metal strips 17 and 18which have pro ecting ends'that.

carry chains 23 and 2-1. Upon the revolution of the pi 3, these chainswill be swung outwardi; by centrifugal force, and owing to the fact thatthe same are positioned contiguous to the apex of the inconstantadditional agitationwill be imparted to the pulp in the apex of thebottom of said tank that will prevent any sediment from forming thereinand will always maintain an open and free passage through the lower endof the pi 3. This will prevent the lower end of t e suction pipe 3 frombecoming choked in any manner which would result in the sto' page of theoperation of this agitator. I is additional agitating means will alsostart the pulp in the bottom of the inverted conical bottom of the tankin motion upon the revolution of the pipe 3, before the circulatin meansare started. It will be noted that the nozzle ulley P vcrted conicallower end 2 of the tank 1, a z

at the end'of the pipe 13 is spaced 9. short structed, and theadditional agitating means will stir the pulp around the said ends ofthe pipes so that the Water will have a comparatively unobstructedpassage from one pipe to the other when the same is turned on by theoperation of the valve 16.

The trough or hopper which is secured at a point below the arms 6, onthe inner wall of the tank, willreceive a certain portion of thepulpwhen the same is discharged from theextremities 7 of the arms 6 uponthe revolution of the same. This pulp that flowsinto the hopper ortrough 10 is discharged therefrom through the dischargepipe 12 that isconnected to. the bottom of the said hopper and the said pipe 1:2 willcarry the pulp to any desired place. This forms an automatic dischargewhereby pulp may be taken from the tank 1 during the agitating operationwhen desired.

This agitating machine forms aneasy and simple device for agitatingground ore containing gold, silver, or copper in a cyanid scribed, thepulp in the tank will be kept in solution or anacid solution for thepurpose of extracting values. Upon thestarting of the suctioncirculating means as above dea. continual. circulation, as long as thepipe and arins which are suspended in the said tank are rotated. Theadditional agitating means that are secured to the lower end of thesuction pipe 3, prevent any chance of the circulation of thepulp beingstopped owing to the choking of the inlet and of the saidpi'pe. Thestarting or priming of this device by means of Water under pressureaffords an easy and simple means for per- :i'orming said function thatis very efiicient in operation and one that is very simple to operate.It is merely necessary to turn the valve 16 to allow a certain amount ofWater into the pipe 3 under pressure and to create a suction, and whenthe'pulp is lifted in the pipe 3 by the said suction, the flow of wateris stopped by the closing of the valve 16 at the outside of the tank 1.g of tlnpulp through this pipe and arms after once being started asabove described,

chine, the manner of applying the same to use. and the operation thereofwill be readil understood and it will be seen that I have provided asimple, inexpensive and The circulation cal pulp containing tank, avertical suction pipe with a radially projecting arm at its top adaptedto discharge the pulp in a predetermined path disposed in said tank, areceptacle secured to the side of said tank and extending a distance inthepath of the discharge from said arm, and an outlet for saidreceptacle.

2. A pulp agitator comprising a cylindrical pulp containing tank havinga revoluble vertical suction pipe with a plurality of radiallyprojecting arms on-its upper end disposed therein, a hopper having anoval.

shaped top disposed'ben-ezith the, path of the extremities of said oneside of said I hopper conformingto the curvature of the inner wall ofsaid tank and disposed adjacent thereto, fastening means to secure saidside to the wall of the tank, the opposite side of said hopperconverging inwardly to the first mentioned-side, and an outlet for saidhopper extending through the'portio'n of the wall of the tank to whichthe same is secured.

3. A pulp containing tank having an inverted cone-shaped lower end, avertically disposed rotatable pipe positioned therein, a pair-ofsemi-circular metal strips engaging the opposite sides of the lower endof said pipe with laterally projecting contactingends secured together,said ends being given a quarter turn adjacent their extremities, andshort length chains secured to the extremitiesof the ends.

l. A pulp agitator comprising a cylindrical pulp containing tankhavingan inverted cone-shaped lower end, a vertical suction pipe with aradially projecting arm at its In testimony whereof I have hereunto set1 my hand in presence of two subscribing wit nesses;

WVILLETT H. BARTON.

Witnesses:

JOSEPH A. Bimrox', Green REMIX.

